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One radian is the angle subtended at the centre of the circle by an arc of length equal to the radius of the circle. Since one circle = 360o and has 2 ${\pi}$ radians therefore 1 radian = 360o / 2 ${\pi}$ r= 57.296o or 57.3o.
Mutiso answered the question on October 16, 2018 at 05:30
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